Check ring with anti-falling function and connector using check ring

Abstract

The invention relates to a connector structure, in particular to a check ring with an anti-disengaging function and a connector using the check ring, the check ring comprises a check ring body with an opening, the check ring body comprises an embedding part used for being embedded into a check ring groove and a protruding part used for bearing axial force, and a protrusion is arranged on the non-stress face of the protruding part. When the check ring is assembled, the protrusion is used for being connected with the force bearing inner wall of the check ring installation structure in an abutting mode, and a gap exists between the embedded part and the groove bottom wall of the check ring groove. The protrusion is arranged on the non-stress face of the check ring, the stress face stops the corresponding part, the outer wall of the protrusion abuts against the stress bearing inner wall of the connecting nut, the gap is reserved between the embedded part and the groove bottom wall of the check ring groove, and when the part stopped by the check ring is subjected to outward disengaging force, the part can be prevented from being disengaged through cooperation of the protrusion and the inner wall of the check ring installation structure. The check ring is subjected to a pair of balance force, the check ring is prevented from being disengaged, and then parts in the check ring installation structure are prevented from being disengaged.

Description

Technical Field

[0001] This invention relates to a connector structure, specifically to a retaining ring with an anti-disengagement function and a connector using the retaining ring. Background Technology

[0002] like Figures 1 to 2 The diagram shows a connector, which mainly consists of a connecting nut 1, a connector housing 2, a gasket 3, an elastic element 4, a washer 5, a gasket 6, a retaining ring 7, an insulator 8, and a contact element 9. The connecting nut 1 is rotatably fitted onto the connector housing 2. The inner wall of the connecting nut 1 has a step, and the outer wall of the connector housing 2 has a protrusion. A gasket 3 is placed between the step and the protrusion to prevent wear when the connector housing 2 and the connecting nut 1 rotate relative to each other. The step and the protrusion provide rearward blocking for the connecting nut 1. The elastic element 4, the washer 5, and the gasket 6 are sequentially fitted onto the part of the connector housing 2 behind the protrusion from front to back. The retaining ring 7 is nested in the retaining ring groove on the inner wall of the connecting nut 1. The retaining ring 7 blocks the gasket 6, thus fixing the connecting nut 1, connector housing 2, gasket 3, elastic element 4, washer 5, and gasket 6 together.

[0003] like Figure 3 As for Figure 4 The retaining ring 7 in the connector plug described above has a notch to facilitate insertion into the retaining ring groove on the connecting nut 1. The outer diameter of the retaining ring 7 and the bottom wall of the retaining ring groove are in contact fit with each other and there is a certain interference fit between them. The bottom wall of the retaining ring groove of the connecting nut 1 generates a pressure F1 on the outer wall of the retaining ring 7. Figure 5 As shown. From Figure 3 As can be seen, the cross-section of retaining ring 7 is rectangular. The force analysis of retaining ring 7 is shown below. Figure 5 , Figure 6 ,in Figure 5 This is a force analysis diagram of the uniformly distributed force acting on retaining ring 7. Figure 6 for Figure 5 The simplified force analysis diagram shows the forces acting on the connector housing 2. The protruding portion of the retaining ring 7 extending from the retaining ring groove is subjected to pressure F2 transmitted from the washer 6. F2 is mainly caused by the cable (…) Figure 1 (Not shown) The force generated by the rightward pulling force and the elastic force generated by the bellows spring 4, with F2 being the larger value. F3 is the axial blocking force generated by the rear side wall of the retaining ring groove on the part of the retaining ring 7 located in the retaining ring groove. Because the lines of action of forces F2 and F3 are not aligned, as... Figure 6 As shown, when the value of F2 exceeds a certain limit, the inner wall of the retaining ring 7 tilts backward, as... Figure 6As shown. Due to the small thickness of the retaining ring 7, it deflects. And due to the reaction force of force F1 (i.e., the elastic force of the retaining ring 7 expanding outward radially), the retaining ring 7 tends to rotate counterclockwise, causing the retaining ring 7 to "overturn" and "come out" from the retaining ring groove. This leads to the loosening, disintegration, and failure of the connector-related parts, such as the connecting nut 1 on the connector, and ultimately to the failure of the connector. Summary of the Invention

[0004] To address the technical problem that the aforementioned retaining rings easily cause connector failure, this invention provides a retaining ring with anti-detachment function and a connector using the retaining ring.

[0005] The objective of this invention is achieved through the following technical solution. According to this invention, a retaining ring with an anti-detachment function includes a retaining ring body with an opening. The retaining ring body includes an insert portion for embedding into a retaining ring groove and a protrusion portion for bearing axial force. A protrusion is provided on the non-force-bearing surface of the protrusion portion. During retaining ring assembly, the protrusion abuts against the load-bearing inner wall of the retaining ring mounting structure, and a gap exists between the insert portion and the bottom wall of the retaining ring groove.

[0006] Compared with the prior art, the advantages of the present invention are: By setting a protrusion on the non-load-bearing surface of the retaining ring, the load-bearing surface blocks the corresponding parts. The outer wall of the protrusion abuts against the load-bearing inner wall of the connecting nut. A gap is left between the embedded part and the bottom wall of the retaining ring groove. When the parts blocked by the retaining ring are subjected to an outward force, the cooperation between the protrusion and the inner wall of the retaining ring mounting structure makes the retaining ring subject to a pair of balanced forces (i.e., F6 and F5, where the resultant force F2 of the load-bearing surface of the protrusion and the preload force of the retaining ring is F6, and the resultant force F3 of the pressure F3 of the side wall of the retaining ring groove on the embedded part and the force F4 of the load-bearing inner wall of the retaining ring mounting structure on the protrusion is F5), thus preventing the retaining ring from coming out, and thereby preventing the parts in the retaining ring mounting structure from coming out.

[0007] Furthermore, the resultant force F2 of the force-bearing surface of the protrusion and the pre-tightening force of the retaining ring is F6, and the resultant force F5 of the pressure F3 of the side wall of the retaining ring groove on the embedded part and the force F4 of the load-bearing inner wall of the retaining ring mounting structure on the protrusion is a pair of balanced forces.

[0008] Furthermore, the protrusion is a ring, the inner wall of the ring is flush with the inner wall of the retaining ring body, and the outer diameter of the ring is smaller than the outer diameter of the retaining ring body, so that the cross-section of the retaining ring is hook-shaped, forming a hook-shaped retaining ring.

[0009] Compared with the prior art, the advantages of the present invention are: By keeping the retaining ring groove on the inner wall of the retaining ring mounting structure unchanged, and keeping all other parts unchanged, the structural failure caused by the retaining ring coming off can be avoided simply by improving the design of the retaining ring and changing it to a hook-shaped retaining ring.

[0010] Furthermore, the protrusion is a ring, the outer diameter of which is smaller than the outer diameter of the retaining ring body, and the inner diameter of which is larger than the inner diameter of the retaining ring body so that the cross-section of the retaining ring is T-shaped, or the inner diameter of which is smaller than the inner diameter of the retaining ring body so that the cross-section of the retaining ring is Z-shaped.

[0011] Furthermore, the protrusion is a number of arc-shaped portions circumferentially distributed on the non-stressed surface.

[0012] A connector includes a connector housing, a connecting nut disposed on the outside of the connector housing, an elastic element, and a washer. The inner wall of the rear end of the connecting nut is provided with a retaining ring groove, and the retaining ring is assembled in the retaining ring groove. The force-bearing surface of the protrusion abuts against the washer to bear axial force. The protrusion abuts against the force-bearing inner wall of the connecting nut, and there is a gap between the embedded part and the bottom wall of the retaining ring groove.

[0013] Compared with the prior art, the advantages of the present invention are: By setting a protrusion on one side of the retaining ring, when the part blocked by the retaining ring is subjected to an outward force, the retaining ring is subjected to a pair of balanced forces through the cooperation between the protrusion and the inner wall of the connecting nut, thus preventing the retaining ring from coming out and preventing the parts inside the connecting nut from coming out.

[0014] Furthermore, a washer ring is provided between the elastic element and the washer. One end of the elastic element abuts against the boss on the outer wall of the connector housing, and the other end abuts against the washer ring, which abuts against the washer ring.

[0015] Furthermore, a gasket is fitted onto the connector housing, and a step is provided on the inner wall of the connecting nut. The gasket is located between the step and the other side of the boss.

[0016] A connector includes a connector housing, an inner wall of which is provided with a retaining ring groove, a retaining ring is assembled in the retaining ring groove, a force-bearing surface of a protrusion abuts against a corresponding part assembled inside the connector housing to bear axial force, the protrusion abuts against the force-bearing inner wall of the connector housing, and there is a gap between the embedded part and the bottom wall of the retaining ring groove.

[0017] Compared with the prior art, the advantages of the present invention are: By setting a protrusion on one side of the retaining ring, when the part blocked by the retaining ring is subjected to an outward force, the retaining ring is subjected to a pair of balanced forces through the cooperation of the protrusion and the inner wall of the connector housing, thus preventing the retaining ring from coming out and preventing the parts inside the connector housing from coming out.

[0018] Furthermore, the connector housing contains an insulator and a contact inserted into the insulator. The force-bearing surface of the protrusion abuts against the insulator assembled inside the connector housing to withstand axial force.

[0019] The above description is merely an overview of the technical solution of the present invention. In order to better understand the technical means of the present invention and to implement it in accordance with the contents of the specification, and to make the purpose, features and advantages of the present invention more obvious and understandable, preferred embodiments are described below in detail with reference to the accompanying drawings. Attached Figure Description

[0020] Figure 1 This is a cross-sectional view of a connector in the prior art; Figure 2 for Figure 1 The left view; Figure 3 for Figure 1 Cross-sectional view of the middle retaining ring; Figure 4 for Figure 3 The left view; Figure 5 for Figure 1 Force analysis diagram of uniformly distributed force on the middle retaining ring; Figure 6 for Figure 1 Simplified force analysis diagram of the middle retaining ring; Figure 7 This is a cross-sectional view of an embodiment of the connector of the present invention; Figure 8 for Figure 7 The left view; Figure 9 for Figure 7 A cross-sectional view of the hook-shaped retaining ring; Figure 10 for Figure 7 Left view of the hook-shaped retaining ring; Figure 11 for Figure 7 Force analysis diagram of uniformly distributed force on the hook-shaped retaining ring; Figure 12 for Figure 7 Simplified force analysis diagram of the hook-shaped retaining ring; Figure 13 for Figure 7 Simplified force analysis diagram of the resultant force of the hook-shaped retaining ring; Figure 14 for Figure 7 Enlarged diagram of point A in the middle.

[0021] Figure label: 1-Connecting nut, 11-Step, 12-Retaining ring groove, 13-Bearing inner wall, 14-Groove bottom wall, 15-Gap, 2-Connector housing, 21-Boss, 3-Pusher, 4-Elastic element, 5-Washer ring, 6-Washer, 7-Retaining ring, 8-Insulator, 9-Contact, 10-Hook-shaped retaining ring, 101-Retaining ring body, 102-Ring, 103-Embedded part, 104-Protrusion, 105-Opening, 106-Force-bearing surface, 107-Outer wall I, 108-Outer wall II, 109-Non-force-bearing surface. Detailed Implementation

[0022] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0023] An embodiment of a connector according to the present invention, such as... Figures 7 to 14 As shown, the explanation uses the mating end of the connector as the front end. Figure 7 As shown, the connector includes a connector housing 2, and a connecting nut 1 is fitted onto the outer wall of the connector housing 2. The connecting nut 1 is rotatably mounted on the connector housing 2. The inner wall of the connecting nut 1 has a step 11, and the outer wall of the connector housing 2 has a boss 21. A gasket 3 is provided between the step 11 and the boss 21. The gasket 3 is fitted onto the connector housing 2. The boss 21 blocks the step 11 from moving backward, thereby blocking the connecting nut 1 from moving backward.

[0024] The connector housing 2 located behind the boss 21 is fitted with an elastic element 4, a washer 5, and a gasket 6 in sequence. In this embodiment, the elastic element 4 is a corrugated spring, the washer 5 is a plastic ring, and the gasket 6 is a metal gasket. The washer 5 and the gasket 6 are slidably disposed on the connector housing 2. Under the elastic force of the elastic element 4, the washer 5 and the gasket 6 are subjected to a rearward force and have a tendency to move backward.

[0025] In this embodiment, the connector uses a retaining ring with an opening 105 and an anti-disengagement function. Specifically, the retaining ring is a hook-shaped retaining ring 10, and the retaining ring mounting structure corresponding to the hook-shaped retaining ring 10 is the connecting nut 1. A retaining ring groove 12 is provided on the inner wall of the rear end of the connecting nut 1, and the hook-shaped retaining ring 10 is nested in the retaining ring groove 12. Under the elastic force of the elastic member 4, the rear end face of the washer 6 abuts against the front side wall of the protrusion 104 of the hook-shaped retaining ring 10 protruding from the retaining ring groove. The front side wall constitutes the force-bearing surface 106 of the hook-shaped retaining ring 10 for bearing axial force. When a certain axial force is applied to the hook-shaped retaining ring 10, the embedded part 103 of the hook-shaped retaining ring 10 is pressed against the rear side wall of the retaining ring groove, thereby causing the rear side wall of the retaining ring groove to exert force on the rear side wall of the embedded part 103.

[0026] An insulator 8 is nested inside the connector housing 2, and the insulator 8 is axially confined within the connector housing 2. A contact 9 is inserted into the insulator 8, and the contact 9 is axially confined within the insulator 8. A cable is fixedly connected to the connector housing 2, and the wire end of the cable is connected to the tail end of the contact 9. When the cable is subjected to tension, the tension is transmitted through the connector housing 2, the boss 21 on the connector housing 2, the elastic element 4, the washer 5, and the gasket 6 to the force-bearing surface 106 of the protrusion 104 of the hook-shaped retaining ring 10. The force-bearing surface 106 bears the transmitted axial force. Under the action of the axial force transmitted by the tension, the embedded part 103 of the hook-shaped retaining ring 10 abuts against the rear sidewall of the retaining ring groove, and the rear sidewall of the retaining ring groove exerts force on the rear sidewall of the embedded part 103.

[0027] To facilitate the insertion of the hook-shaped retaining ring 10 into the retaining ring groove of the connecting nut 1, the hook-shaped retaining ring 10 is provided with an opening 105, such as... Figure 10 As shown, and possessing a certain degree of elasticity, when the hook-shaped retaining ring 10 is inserted into the retaining ring groove, it is compressed radially inward to facilitate insertion of the hook-shaped retaining ring 10 into the connecting nut 1, and then into the retaining ring groove. After the hook-shaped retaining ring 10 is inserted into the retaining ring groove, it has a certain preload to ensure a tight fit between the hook-shaped retaining ring 10 and the inner wall of the connecting nut 1, preventing the hook-shaped retaining ring 10 from loosening and falling off. Therefore, the hook-shaped retaining ring 10 has a tendency to expand outward, and it can exert an outward expansion force on itself.

[0028] See detailed drawing of hook-shaped retaining ring 10. Figures 9 to 10 ,replace Figure 1 The retaining ring 7 in the prior art connector shown is a hook-shaped retaining ring 10, which includes a retaining ring body 101. The retaining ring body 101 has the same structure as the retaining ring 7 in the prior art, and can also maintain the integrity of the connector structure and the fixation of related parts. The insert portion 103 on the outer side of the retaining ring body 101 is nested in the retaining ring groove 12, and the protrusion 104 on the inner side protrudes out of the retaining ring groove 12.

[0029] Figure 9This is a cross-sectional view of the hook-shaped retaining ring 10. In the prior art, a ring 102 is added to the rear side wall of the retaining ring 7 (i.e., the rear side wall of the retaining ring body 101, which is also the non-force-bearing surface 109 opposite to the force-bearing surface 106). Because the retaining ring body 101 has an opening 105, the ring 102 is adapted to the circumference of the retaining ring body 101 and is also a C-shaped part with an opening 105. The ring 102 is integrally set with the retaining ring body 101, and the inner wall of the ring 102 coincides with the inner wall of the retaining ring body 101. The outer diameter of the ring 102 is smaller than the outer diameter of the retaining ring body 101, so that the cross-section of the hook-shaped retaining ring 10 presents an overall "V-shaped" or "hook-shaped" shape, hence it is called a hook-shaped retaining ring 10 or a V-shaped retaining ring.

[0030] The outer wall I 107 of the ring 102 mates with the load-bearing inner wall 13 of the connecting nut 1, with a clearance of 0. Through the radial stop fit between the outer wall I 107 of the ring 102 and the load-bearing inner wall 13 of the connecting nut 1, a small gap 15 is reserved between the outer wall II 108 of the retaining ring body 101 and the bottom wall 14 of the retaining ring groove 12 of the connecting nut 1, thereby preventing contact between the retaining ring body 101 and the bottom wall 14 of the retaining ring groove 12, and avoiding the generation of F1 in the prior art. The outer wall I 107 of the ring 102 abuts against the load-bearing inner wall 13 of the connecting nut 1. Under the outward expansion force of the hook-shaped retaining ring 10, the load-bearing inner wall 13 of the connecting nut 1 applies a reaction force to the ring 102.

[0031] The force analysis of the hook-shaped retaining ring 10 is shown in [reference]. Figure 11 , Figure 12 ,in Figure 11 This is a force analysis diagram of a uniformly distributed force. Figure 12 The simplified force analysis diagram shows that the protrusion 104 of the hook-shaped retaining ring 10 is subjected to a pressure F2 applied by the washer 6 (pressure F2 is formed by the elastic force of the elastic element 4 being transmitted to the washer 6, or by the sum of the elastic force of the elastic element 4 and the tension force on the cable being transmitted to the washer 6). Pressure F2 acts on the force-bearing surface 106 of the protrusion 104; F2 is mainly caused by the cable (…) Figure 4 (Not shown) The axial force generated by the rightward pulling force and the elastic force generated by the elastic element 4 is therefore, the value of pressure F2 is relatively large. Pressure F3 is the axial blocking force generated by the rear side wall of the retaining ring groove 12 of the connecting nut 1 against the rear side wall of the insertion part 103 of the hook-shaped retaining ring 10. Due to the force of pressure F2 on the hook-shaped retaining ring 10, the hook-shaped retaining ring 10 is pressed against the rear side wall of the retaining ring groove, so the rear side wall of the retaining ring groove 12 generates a reaction force F3 on the hook-shaped retaining ring 10.

[0032] Compared to Figure 5 , Figure 6In the prior art shown, the bottom wall 14 of the retaining ring groove 12 of the connecting nut 1 generates a pressure F1 on the outer wall of the retaining ring 7. Because a gap 15 is reserved between the outer wall of the retaining ring body 101 and the bottom wall 14 of the retaining ring groove 12 of the connecting nut 1, pressure F1 disappears, and a new pressure F4 is added between the load-bearing inner wall 13 of the connecting nut 1 and the outer wall I 107 of the ring 102. Since the lines of action of pressures F2 and F3 are not aligned in the prior art, when the value of pressure F2 exceeds a certain limit, and in conjunction with pressure F1, the retaining ring 7 in the prior art tends to rotate counterclockwise; however, in this invention, due to the introduction of pressure F4 and the removal of F1, as... Figure 13 As shown, the resultant force of pressures F3 and F4 is F5, and the hook-shaped retaining ring 10 itself has a pre-tightening force, that is, it has an outward expansion force. This expansion force acts on the hook-shaped retaining ring 10 itself and, together with pressure F2, becomes F6.

[0033] When designing the hook-shaped retaining ring 10, the structure and dimensions of the ring 102 are designed according to the connector's own structure and working environment. This allows for the determination of the fit between the outer wall I107 of the ring 102 and the load-bearing inner wall 13 of the connecting nut 1, as well as the magnitude of their interaction forces. For example, by adjusting the outer diameter of the ring 102, the pressure value of pressure F4 on the outer wall I107 of the ring 102 can be changed; by adjusting the length of the ring 102, the distance between the line of action of pressure F4 and the retaining ring body 101 can be changed, thereby altering the magnitude and direction of the resultant force F5 between pressure F4 and pressure F3. After adjusting the structure and dimensions of the ring 102, the fit between the outer wall Ⅰ107 of the ring 102 and the bearing inner wall 13 of the connecting nut 1 changes the preload on the hook-shaped retaining ring 10, thereby changing the outward expansion force of the hook-shaped retaining ring 10. This alters the magnitude and direction of the resultant force F6 between the pressure F2 and the expansion force, and also changes the magnitude and direction of the force F4 exerted by the bearing inner wall 13 on the ring 102, as well as the resultant force F5 of F4 and F3. Therefore, by designing the structure and dimensions of the ring 102, the resultant forces F5 and F6 can be balanced without changing other aspects of the connector structure. When the hook-shaped retaining ring 10 is in equilibrium, the resultant forces F5 and F6 are a pair of equal and opposite balancing forces, and the balancing forces move along... Figure 13 The dotted line on the top acts on the hook-shaped retaining ring 10, keeping the hook-shaped retaining ring 10 stationary, thereby preventing the hook-shaped retaining ring 10 from "overturning" or "coming off", and preventing the connecting nut 1 and other parts on the outside of the connector from becoming loose and causing structural failure.

[0034] In another embodiment of the connector of the present invention, improvements are made based on the above embodiments. The hook-shaped retaining ring can also be used in other types of connectors. In other types of connectors, a connector housing is included. No connecting nut or other components are provided on the outside of the connector housing. The connector housing is the retaining ring mounting structure corresponding to the retaining ring. A retaining ring groove is provided on the inner wall of the connector housing. The hook-shaped retaining ring 10 is nested in the retaining ring groove. The ring 102 on the hook-shaped retaining ring 10 cooperates with the load-bearing inner wall of the connector housing. The cooperation relationship between the hook-shaped retaining ring 10 and the connector housing is the same as the cooperation relationship between the hook-shaped retaining ring 10 and the connecting nut 1 in the above embodiments. The hook-shaped retaining ring 10 can prevent the corresponding parts in the connector housing from coming out. When the corresponding parts in the connector housing are subjected to external force and come out, the hook-shaped retaining ring 10 can stop the corresponding parts in the connector housing and prevent them from coming out. At the same time, due to the structure of the hook-shaped retaining ring 10 itself, it can prevent the hook-shaped retaining ring 10 from coming out of the retaining ring groove and causing the hook-shaped retaining ring 10 to fail. For example, the corresponding parts inside the connector housing are insulators, and the contacts inserted into the insulators are connected to the cable termination. When the cable is subjected to tension, the tension is transmitted to the hook-shaped retaining ring 10 through the contacts and the insulators. The hook-shaped retaining ring 10 prevents the insulator inside the connector housing from coming out of the connector housing.

[0035] An embodiment of the retaining ring with anti-detachment function of the present invention has the same structure as the retaining ring with anti-detachment function in the connector embodiment described above, and will not be described again here.

[0036] In another embodiment of the anti-detachment retaining ring of the present invention, improvements are made based on the above embodiments. The hook-shaped retaining ring 10 can be replaced with a retaining ring of other shapes, such as a T-shaped retaining ring. The T-shaped retaining ring is an improvement on the hook-shaped retaining ring 10. The inner wall of the ring 102 may not be flush with the retaining ring body 101. The inner diameter of the ring 102 may be larger than the inner diameter of the retaining ring body 101, so that the cross-sectional shape of the retaining ring is T-shaped, that is, a protrusion is formed on the rear side wall of the retaining ring body 101. Alternatively, the hook-shaped retaining ring 10 can be replaced with a Z-shaped retaining ring, where the inner diameter of the ring 102 is smaller than the inner diameter of the retaining ring body 101, so that the cross-sectional shape of the retaining ring is Z-shaped.

[0037] Regardless of whether it is a hook-shaped retaining ring, a T-shaped retaining ring, or a Z-shaped retaining ring, it is a protrusion formed on the rear side wall of the retaining ring body 101. The protrusion is located on the rear side wall of the protrusion 104 (i.e., on the non-force-bearing surface 109 opposite to the force-bearing surface 106 of the protrusion 104). The outer wall of the protrusion cooperates with the load-bearing inner wall 13 of the connecting nut 1, so that the retaining ring body 101 does not contact the bottom wall 14 of the retaining ring groove, thus avoiding the generation of F1. The position of the pre-tightening force (i.e., the outward expansion force) of the retaining ring applied to the connecting nut 1 is transferred from the bottom wall 14 of the retaining ring groove 12 to the load-bearing inner wall 13 of the connecting nut 1. The reaction force of this pre-tightening force is F4, which can form a resultant force F5 with F3, and form a pair of balanced forces with the resultant force F6. This prevents the retaining ring from loosening and falling off under the elastic force of the elastic element 4, and also prevents the retaining ring from loosening and falling off when the cable is subjected to a certain tension, thereby preventing connector failure. Depending on the connector's working environment (different working environments result in different tensile forces on the connector, which in turn cause different forces on the retaining ring), the structure and dimensions of the ring 102 can be adjusted to adapt to the corresponding working environment, ensuring that the forces on the retaining ring remain balanced. The aforementioned protrusion can be a continuous ring 102. In other embodiments, the ring 102 can be segmented into several concentric arc-shaped portions. These arc-shaped portions are circumferentially distributed on the non-load-bearing surface 109 of the protrusion 104, and the outer arc surface of each arc-shaped segment abuts against the load-bearing inner wall 13 of the retaining ring mounting structure.

[0038] The retaining ring of the present invention can also be used in other retaining ring mounting structures, not limited to connectors. As long as the corresponding parts in the retaining ring mounting structure tend to come out of the retaining ring mounting structure under the action of external force and need to be stopped by the retaining ring, the retaining ring of the present invention can be used to prevent the retaining ring from coming out of the retaining ring groove under the action of external force, thereby preventing the corresponding parts in the retaining ring mounting structure from coming out of the retaining ring mounting structure.

[0039] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A retaining ring with anti-detachment function, comprising a retaining ring body (101) having an opening (105), the retaining ring body (101) including an insert (103) for embedding into a retaining ring groove (12) and a protrusion (104) for bearing axial force, characterized in that: A protrusion is provided on the non-stressed surface (109) of the protrusion (104). During the assembly of the retaining ring, the protrusion is used to abut against the load-bearing inner wall (13) of the retaining ring mounting structure, and there is a gap (15) between the embedded part (103) and the bottom wall (14) of the retaining ring groove (12).

2. A retaining ring with anti-detachment function according to claim 1, characterized in that: The resultant force F2 of the force-bearing surface (106) of the protrusion (104) and the pre-tightening force of the retaining ring is F6. The resultant force F3 of the pressure F3 of the side wall of the retaining ring groove (12) on the embedded part (103) and the force F4 of the load-bearing inner wall (13) of the retaining ring mounting structure on the protrusion is F5. F6 and F5 are a pair of balanced forces.

3. A retaining ring with anti-detachment function according to claim 1, characterized in that: The protrusion is a ring (102), the inner wall of the ring (102) is flush with the inner wall of the retaining ring body (101), and the outer diameter of the ring (102) is smaller than the outer diameter of the retaining ring body (101), so that the cross section of the retaining ring is hook-shaped, forming a hook-shaped retaining ring (10).

4. A retaining ring with anti-detachment function according to claim 1, characterized in that: The protrusion is a ring (102), the outer diameter of the ring (102) is smaller than the outer diameter of the retaining ring body (101), and the inner diameter of the ring (102) is larger than the inner diameter of the retaining ring body (101) so that the cross section of the retaining ring is T-shaped, or the inner diameter of the ring (102) is smaller than the inner diameter of the retaining ring body (101) so that the cross section of the retaining ring is Z-shaped.

5. A retaining ring with anti-detachment function according to claim 1, characterized in that: The protrusions are several arc-shaped portions circumferentially distributed on the non-stressed surface (109).

6. A connector, comprising a connector housing (2), a connecting nut (1) disposed on the outside of the connector housing (2), an elastic element (4), and a washer (6), wherein the inner wall of the rear end of the connecting nut (1) is provided with a retaining groove (12), characterized in that: The retaining ring groove (12) is fitted with a retaining ring as described in any one of claims 1-5. The force-bearing surface (106) of the protrusion (104) abuts against the washer (6) to bear the axial force. The protrusion abuts against the load-bearing inner wall (13) of the connecting nut (1). There is a gap between the embedded part (103) and the bottom wall (14) of the retaining ring groove (12).

7. A connector according to claim 6, characterized in that: A washer (5) is provided between the elastic element (4) and the washer (6). One end of the elastic element (4) abuts against the boss (21) on the outer wall of the connector housing (2) and the other end abuts against the washer (5). The washer (5) abuts against the washer (6).

8. A connector according to claim 6, characterized in that: A gasket (3) is fitted on the connector housing (2), and a step (11) is provided on the inner wall of the connecting nut (1). The gasket (3) is located between the other side of the boss (21) and the step (11).

9. A connector, comprising a connector housing, wherein the inner wall of the connector housing is provided with a retaining ring groove, characterized in that: The retaining ring is assembled in the retaining ring groove according to any one of claims 1-5. The force-bearing surface (106) of the protrusion (104) abuts against the corresponding part assembled inside the connector housing to bear the axial force. The protrusion abuts against the load-bearing inner wall (13) of the connector housing. There is a gap between the embedded part (103) and the bottom wall (14) of the retaining ring groove (12).

10. A connector according to claim 9, characterized in that: An insulator (8) and a contact (9) inserted into the insulator (8) are provided inside the connector housing (2). The force-bearing surface (106) of the protrusion (104) abuts against the insulator assembled inside the connector housing to withstand axial force.

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